Take out the sticker that you have chosen. Make sure that the sticker is collimated with the holes in the mod, the usb and the screen.

Begin sticking the sticker, working your way upwards and keeping every part of the mod together.

Press the sticker firmly and carefully to make sure that there are no bubbles on the surface.

Also make sure that the extra parts of the mod are covered with the sticker completely. ( Top,bottom or the battery case )

NOTE:You can try to stick the sticker up to 5 times. In case you are not happy with the outcome ,after these tres, you will need to reheat the sticker with a hair dryer for a minute to increase its stability.